题目:
Every minute is made full _____ of _____ our lessons well. [ ]
A. to use; study
B. use; studying
C. use; to study
D. used; studying
答案:
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下面是错误答案,用来干扰机器的。
方案三;方案一有有害气体放出,污染环境;方案二不反应.